A flat iron is also known as a hair straightener by many people. They are used to straighten hair and can be both electric and gas powered.
You can take a flat iron on a plane but basically the same regulations apply as for hair straighteners and curling irons. An electric flat iron can be carried in either your carry on or your checked bags but a gas powered flat iron can only be carried in a carry on bag.
Can you take a flat iron through airport security in carry on?
There are no restrictions on taking a flat iron through a security checkpoint at the airport. They can be left in your carry on when the bag goes through the x-ray machine so you do not need to remove them and place them in a tray.
However, if it is a gas powered flat iron, then the gas cartridge must be properly fitted and have a safety cover over the heating element. This may well be checked by the security agent after it passes through the x-ray machine.
You cannot carry spare gas/butane cartridges through the security checkpoint.
The TSA offer a very good service on Twitter (and Facebook) where you can ask any questions you may have about whether you can take something through the security checkpoint and they will respond quickly.
These are two example responses to a passenger’s question regarding carrying an electric and a gas flat iron:
NOTE: If you have a gas flat iron in your carry on you are not permitted to use it while onboard the aircraft. It must stay in your carry on with the safety cover in place.
Can you take a flat iron in your checked bags?
Electric flat iron – Electric flat irons can be packed in your suitcase and travel in checked baggage without restrictions.
Gas flat iron – these cannot be put in your checked bags and neither can spare gas cartridges. If you do then the bags are likely to be opened and the items confiscated.
Will my flat iron work if traveling internationally?
Electrical sockets are not the same worldwide. US plugs will not fit in sockets in the UK, Europe, Asia, Australia and elsewhere.
You will need to purchase a travel adapter to so you can use your electric flat iron when traveling overseas.
The most popular adapter is the Ceptics World Travel Power Adapter. This will allow you to plug your devices into sockets overseas in Europe and Asia. It also has 3 USB sockets to charge phones, laptops, tablets etc without taking a different one for each.
One more thing you need to be aware of is that most US flat irons operate on 110 volts whereas in most other countries they use 220-240 volts. Now many devices these days are designed to operate on dual voltage so they will work anywhere. However this is not always the case so you should check the specification of your flat iron before you pack it to be sure.